clear joins and create without columns
Zend\Db\Sql\Literal
* Fixed escaping of sprintf character: %
Add failing tests
CS fixes
Allow filter to convert string to array
Merge branch 'fixture_paginator' of git://github.com/romulobusatto/zf2 into romulobusatto-fixture_paginator
Zend\Paginator
Unit test for DbSelect and resetting of join columns
Closes #3706
Merge branch 'romulobusatto-fixture_paginator'
Merge branch 'form-filter-array-issue' of git://github.com/davidwindell/zf2 into hotfix/3819
Merge branch 'hotfix/3819'

Close #3819
Merge branch 'console-tests' of git://github.com/bakura10/zf2 into hotfix/3817
Merge branch 'hotfix/db-sql-literal-escaping' of git://github.com/ralphschindler/zf2 into hotfix/3785
Merge branch 'hotfix/3785'

Close #3785
Fixes #3737
[#3817] Fix tests and conditional code

- Test cases that were added failed as they omitted mandatory literal
  parameters; added them to better illustrate the expected usage.
- Added explicit regex and conditional for optional long flags when
  parsing, resolving issues.
Merge branch 'hotfix/3817'

Close #3817
Test fixes for CAPTCHA component

- ZendTest\Captcha\ImageTest::testCaptchaImageCleanupOnlyCaptchaFilesIdentifiedByTheirSuffix
  often fails when running under parallized builds as the test directory
  gets cleaned before we're done. Added a constant to skip the test by
  default.
Merge branch 'hotfix/captcha-failures'

Fixes test failures due to timing issues in captcha GC